20. Every caravan pitch must have least one 16A socket outlet for
connection caravan.
. only instructed and skilled people may work ‘live’.
27. polarity test.365
U W
6 6
2 2
C1
L1 C1
2
C3
4
5
6
To phase supply
To phase motor
19. continuity test
b. Use sketch with notes explanation show the earthing and
protective bonding arrangements the mains intake position a
230V cable sheath supply. only competent people may work ‘live’
d. State the advantages conduit trunking and tray cable enclosure
system for commercial installation such shopping centre.
24.
26.
21.
25. everyone may work ‘live’
b.
23. earth fault loop impedance
c. All final circuits bathroom, both power and lighting, must have:
a. IPX7 protection
d. The Electricity Work Regulations state that:
a. Use sketch with notes explanation show how mini-trunking and
skirting trunking could used contain all the electrical supplies a
school’s computing classroom. overcurrent protection
b. Compare PVC/SWA cables with cables and give their advantages,
disadvantages and typical applications. Zone protection. protected from overcurrent
c. protected additionally RCD
d.
22. RCD protection
c. The socket outlet must be:
a. functional test
d. Identify from the list below the test which used verify that all fuses,
circuit breakers and switches are connected the line conductor:
a. buried depth 600mm. Use sketch with notes explanation show the earthing and
protective bonding arrangements the mains intake position a
230V system. the industrial type
b. one may work ‘live’
c
